Politicians, bureaucrats, and military officers gathered in this field near the Capitol to settle their disputes with blood.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

One of the largest artillery pieces in the world sits in a Washington D.C. parking lot.

The U.S. Navy’s preposterously detailed mini battleship took 77,000 hours to complete.

The United States Capitol's former columns still stand.

A mammoth pair of Civil War artillery guns abandoned out in the forest.

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

The elevator hidden in a smokestack on Roosevelt's yacht now serves as a monument to the former president.

The famous abolitionist’s preserved estate is one of Washington's finest monuments to its great Black citizens.

Remains of a historic fountain that was mysteriously lost in the demolition of a D.C. traffic circle.

A lawn full of retired spacecraft on display at one of NASA's first research labs.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

This 16-foot, intricately detailed model of the Gearing-class destroyer has been called the most detailed model ship ever built.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones' Locker.

Home of the physician who set the leg of John Wilkes Booth after the Lincoln assassination.